Pinch hitter is not announced

[Jay R]

The OBR rule book says that a pinch hitter officially becomes a player when he steps into the batter's box. A coach was telling me that he thought that an unannounced pinch hitter should be treated as batting out of order, thus appealing after the at-bat.

Is there a penalty for not announcing a pinch hitter?

Jay

[Rich Ives]

A pinch hitter is just another substitute. So what you have is an unannounced sub, not a BOOT.

[GarthB]

A coach was telling me that he thought that an unannounced pinch hitter should be treated as batting out of order, thus appealing after the at-bat.

There you go again, listening to coaches.